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langs: 21 марта [ru] / march 21 [en] / 21. märz [de] / 21 mars [fr] / 21 marzo [it] / 21 de marzo [es]

days: march 18 / march 19 / march 20 / march 21 / march 22 / march 23 / march 24

Asteroid / Asteroid


#1 365 Corduba

Corduba ( minor planet designation : 365 Corduba ) is a very large main-belt asteroid that was discovered by the French astronomer Auguste Charlois on 21 March 1893 from Nice . It is classified as a C-type asteroid and is probably composed of carbonaceous material. 365 Corduba Discovery Discovered  

#2 17473 Freddiemercury

17473 Freddiemercury , provisional designation 1991 FM 3 , is a stony Massalian asteroid from the inner regions asteroid belt , approximately 3.4 kilometers in diameter. The asteroid was discovered on 21 March 1991, by Belgian astronomer Henri Debehogne at ESO 's La Silla Observatory in northern Chi

#3 Haumea

Haumea ( minor-planet designation 136108 Haumea ) is a dwarf planet located beyond Neptune 's orbit. [24] It was discovered in 2004 by a team headed by Mike Brown of Caltech at the Palomar Observatory in the United States and disputably also in 2005 by a team headed by José Luis Ortiz Moreno at the

#4 12999 Toruń

12999 Toruń , provisional designation 1981 QJ 2 , is a carbonaceous Baptistina asteroid from the inner regions of the asteroid belt , approximately 8 kilometers in diameter. It was discovered on 30 August 1981, by British–American astronomer Edward Bowell at Lowell Observatory's Anderson Mesa Statio

#5 6102 Visby

6102 Visby , provisional designation 1993 FQ 25 , is a stony background asteroid from the central region of the asteroid belt , approximately 5 kilometers (3.1 miles) in diameter. 6102 Visby Discovery   [1] Discovered   by UESAC Discovery   site La Silla Obs. Discovery   date 21 March 1993 Designati

#6 2709 Sagan

2709 Sagan , provisional designation 1982 FH , is a stony Florian asteroid from the inner regions of the asteroid belt , approximately 6.7 kilometers in diameter. It was discovered on 21 March 1982, by American astronomer Edward Bowell at Lowell's Anderson Mesa Station near Flagstaff, Arizona, and n

#7 996 Hilaritas

996 Hilaritas is a Themistian asteroid . It was discovered in 1923 by Austrian astronomer Johann Palisa . Following Palisa's death in 1925, this asteroid was named for a "happy or contented mind"; qualities associated with the discoverer. [2] Main-belt asteroid 996 Hilaritas Discovery Discovered   b

#8 803 Picka

803 Picka ( prov. designation : A915 FL or 1915 WS ) is a large and dark background asteroid from the outer regions of the asteroid belt . It was discovered on 21 March 1915, by Austrian astronomer Johann Palisa at the Vienna Observatory . [1] The carbonaceous D-type asteroid has a rotation period o

#9 13003 Dickbeasley

13003 Dickbeasley , provisional designation 1982 FN , is a background asteroid from the central region of the asteroid belt , approximately 6 kilometers in diameter. It was discovered by American astronomer Edward Bowell at Lowell's Anderson Mesa Station on 21 March 1982. [2] The asteroid was named

#10 1981 Midas

1981 Midas , provisional designation 1973 EA , is a vestoid asteroid , classified as a near-Earth object and potentially hazardous asteroid , approximately 2 kilometers in diameter. [1] 1981 Midas Discovery [1] Discovered   by C. Kowal Discovery   site Palomar Obs. Discovery   date 6 March 1973 Desi

#11 (7348) 1993 FJ22

(7348) 1993 FJ 22 is a carbonaceous, Themistian asteroid from the outer region of the asteroid belt , about 10 kilometers in diameter. It was discovered on 21 March 1993, by the Uppsala-ESO Survey of Asteroids and Comets (UESAC) at ESO 's La Silla Observatory site in northern Chile. [5] (7348) 1993

#12 366 Vincentina

Vincentina ( minor planet designation : 366 Vincentina ) is a fairly large main belt asteroid . 366 Vincentina Discovery Discovered   by Auguste Charlois Discovery   date 21 March 1893 Designations MPC   designation (366) Vincentina Named after Vincenzo Cerulli Alternative designations 1893 W; A909

#13 2011 SC191

2011 SC 191 is a small asteroid and Mars trojan orbiting near the L 5   point of Mars (60 degrees behind Mars on its orbit). [2] [3] 2011 SC 191 Discovery Discovered   by Mt. Lemmon Survey Discovery   date 31 October 2011 Designations MPC   designation 2011 SC 191 Minor   planet category Martian L5

#14 26858 Misterrogers

26858 Misterrogers ( / ˌ m ɪ s t ər ˈ r ɒ dʒ ər z / ), provisional designation 1993 FR , is a stony asteroid and sizable Mars-crosser on an eccentric orbit from the asteroid belt , approximately 5.1 miles (8.2 kilometers) in diameter. It was discovered on March 21, 1993, by American astronomer Elean

#15 2020 BX12

2020 BX 12 is a sub-kilometer binary asteroid, classified as a near-Earth asteroid and potentially hazardous object of the Apollo group . It was discovered on 27 January 2020 by the Asteroid Terrestrial-impact Last Alert System survey at the Mauna Loa Observatory during its approach to Earth of 0.02

#16 402 Chloë

402 Chloë ( prov. designation : A895 FB or 1895 BW ) is a large main-belt asteroid . It was discovered by French astronomer Auguste Charlois on 21 March 1895 from Nice . [2] This asteroid is orbiting the Sun at a distance of 2.56   AU with a period of 4.09 years and an eccentricity of 0.11. The orbi

#17 (143649) 2003 QQ47

(143649) 2003 QQ 47 , provisionally designated : 2003 QQ 47 , is a kilometer-sized asteroid and synchronous binary system , classified as near-Earth object and potentially hazardous asteroid of the Apollo group . It became briefly notable upon its discovery in late August 2003, when media outlets pl

#18 3708 Socus

3708 Socus ( provisional designation : 1974 FV 1 ) is a large Jupiter trojan from the Trojan camp , approximately 77 kilometers (48 miles) in diameter. It was discovered on 21 March 1974, by staff members of the Cerro El Roble Observatory owned and operated by the Department of Astronomy of the Univ

#19 931 Whittemora

931 Whittemora ( prov. designation : A920 FB or 1920 GU ) is a metallic background asteroid , approximately 46 kilometers (29 miles) in diameter, located in the outer region of the asteroid belt . It was discovered by French astronomer François Gonnessiat at the Algiers Observatory in North Africa o

#20 631 Philippina

631 Philippina is a minor planet orbiting the Sun that was discovered by German astronomer August Kopff on March 21, 1907. 631 Philippina A three-dimensional model of 631 Philippina based on its light curve Discovery Discovered   by August Kopff Discovery   site Heidelberg Discovery   date 21 March


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Comet / Comet


#1 252P/LINEAR

Comet 252P/LINEAR is a periodic comet and near-Earth object discovered by the LINEAR survey on April 7, 2000. The comet is an Earth-Jupiter family comet, meaning that it passes quite close to both Earth and Jupiter . [2] This causes its orbit to be perturbed frequently on an astronomical timescale.

#2 C/1989 X1 (Austin)

C/1989 X1 (Austin) (old-style designations 1990 V and 1989c1) was a comet discovered by New Zealand amateur Rodney R. D. Austin on December 6, 1989. The comet at discovery was predicted to become easily visible by naked eye in spring 1990, however it failed to become that bright. C/1989 X1 (Austin)

#3 Comet Shoemaker–Levy 9

Comet Shoemaker–Levy 9 ( formally designated D/1993   F2 ) broke apart in July 1992 and collided with Jupiter in July 1994, providing the first direct observation of an extraterrestrial collision of Solar System objects. [5] This generated a large amount of coverage in the popular media, and the com

#4 Comet Kohoutek

Comet Kohoutek ( formally designated C/1973 E1 and formerly as 1973 XII and 1973f ) [lower-alpha 3] is a comet that passed close to the Sun towards the end of 1973. Early predictions of the comet's peak brightness suggested that it had the potential to become one of the brightest comets of the 20th

#5 P/2016 BA14 (PanSTARRS)

P/2016 BA 14 (PanSTARRS) is a near-Earth object and periodic comet of the Jupiter family , that was radar imaged at distance of 2.2 million miles (3.5 million km, or 9 lunar distances ) during a flyby of Earth in 2016. [1] This enabled the size of the nucleus to be calculated at about 1   km (0.62  

#6 67P/Churyumov–Gerasimenko

67P/Churyumov–Gerasimenko (abbreviated as 67P or 67P/C–G ) is a Jupiter-family comet , [10] originally from the Kuiper belt , [11] with a current orbital period of 6.45 years, [1] a rotation period of approximately 12.4 hours [9] and a maximum velocity of 135,000   km/h (38   km/s; 84,000   mph) . [


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Galaxy / Galaxy


#1 NGC 5962

NGC 5962 is a spiral galaxy in the equatorial constellation of Serpens Caput . It was discovered by the Anglo-German astronomer William Herschel on March 21, 1784. [9] The NGC 5962 galaxy is located at a distance of 120   million light years and is receding with a heliocentric radial velocity of 1,9

#2 NGC 4515

NGC 4515 is a lenticular galaxy located about 57 million light-years away [3] in the constellation Coma Berenices . [4] NGC 4515 was discovered by astronomer William Herschel on March 21, 1784. [5] The galaxy is a member of the Virgo Cluster . [6] Lenticular galaxy in the constellation Coma Berenice

#3 NGC 4498

NGC 4498 is a barred spiral galaxy [3] located about 50 million light-years away [4] in the constellation Coma Berenices . [5] NGC 4498 was discovered by astronomer William Herschel on March 21, 1784. [6] NGC 4498 is a member of the Virgo Cluster . [7] [8] Barred spiral galaxy in the constellation C

#4 NGC 4540

NGC 4540 is a spiral galaxy with type 1 seyfert activity [3] located about 64 million light-years away [4] in the constellation Coma Berenices . [5] NGC 4540 was discovered by astronomer William Herschel on March 21, 1784 [6] and is a member of the Virgo Cluster . [7] [8] Spiral galaxy in the conste

#5 NGC 4340

NGC 4340 is a double-barred lenticular galaxy [2] [3] located about 55 million light-years away [4] in the constellation of Coma Berenices . [5] NGC 4340 was discovered by astronomer William Herschel on March 21, 1784. [6] NGC 4340 is a member of the Virgo Cluster . [2] [3] NGC 4340 is generally tho

#6 NGC 3597

NGC 3597 is a galaxy located approximately 150 million light-years away in the constellation of Crater . [2] [3] It was discovered by John Herschel on March 21, 1835. [4] Galaxy in the constellation Crater NGC 3597 Hubble Space Telescope image of NGC 3597 Observation data ( J2000 epoch ) Constellati

#7 NGC 2803

NGC 2803 , also known as PCG 26181, [2] is an elliptical or lenticular galaxy in the zodiac constellation Cancer . It was discovered March 21, 1784, by William Herschel . It is interacting with NGC 2802 . [5] Elliptical or lenticular galaxy in the constellation Cancer NGC 2803 SDSS image of NGC 2803

#8 NGC 4502

NGC 4502 is a spiral galaxy [1] located in the constellation Coma Berenices, originally discovered by William Herschel on March 21, 1784. [2] The galaxy features a broad HI line. In the background and to the celestial north of the galaxy, two uncatalogued, distant colliding galaxies can be seen. NGC

#9 NGC 4489

NGC 4489 is a dwarf elliptical galaxy [2] located about 60 million light-years away [3] in the constellation of Coma Berenices . [4] It was discovered by astronomer William Herschel on March 21, 1784. [5] NGC 4489 is a member of the Virgo Cluster . [6] Elliptical galaxy in the constellation Coma Ber

#10 NGC 4656 and NGC 4657

NGC 4656/57 is a highly warped barred spiral galaxy located in the constellation Canes Venatici and is sometimes informally called the Hockey Stick Galaxies or the Crowbar Galaxy . Its unusual shape is thought to be due to an interaction between NGC 4656 , NGC 4631 , and NGC 4627 . [3] The galaxy is


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Institution / Institution


#1 Astronomical Observatory of Mallorca

The Astronomical Observatory of Mallorca ( Spanish : Observatorio Astronómico de Mallorca , OAM ) is an observatory just south of Costitx , Mallorca , Spain . [3] Observatory Astronomical Observatory of Mallorca Alternative   names ca Observatory   code 620   Location Costitx , Mallorca , Spain Coor

#2 Santa Lucia Stroncone Astronomical Observatory

The Santa Lucia Stroncone Astronomical Observatory ( Italian : Osservatorio Astrometrico Santa Lucia Stroncone ) is an astronomical observatory located at 350 metres (1,150   ft) altitude in Stroncone , near the city of Terni , in Umbria , north central Italy. Minor planets discovered: 55   [1] see

#3 Junk Bond Observatory

The Junk Bond Observatory ( JBO ; code: 701 ) is located in the Sonoran Desert at Sierra Vista , Arizona, United States. Astronomical observatory in Cochise County, Arizona This article needs additional citations for verification . ( January 2013 ) Observatory Junk Bond Observatory Alternative   nam

#4 Korean Astronomical Society

The Korean Astronomical Society is a non-profit learned society in South Korea that aims a supporting astronomical scholarship, technological development, education, and the spread of astronomical knowledge. It operates the Journal of the Korean Astronomical Society . Korean Astronomical Society Abb

#5 Purple Mountain Observatory

The Purple Mountain Observatory ( Chinese : 紫金山天文台 ; pinyin : Zǐjīnshān Tiānwéntái ), also known as Zijinshan Astronomical Observatory is an astronomical observatory located on the Purple Mountain in the east of Nanjing . [lower-alpha 1] Observatory Purple Mountain Observatory Purple Mountain Observ

#6 Network for Astronomy School Education

Network for Astronomy School Education (NASE) is an International Astronomical Union (IAU) Working Group that works on Training Teachers for primary and secondary schools. In 2007, professor George K. Miley , IAU vice-president, invited Rosa M. Ros to begin exploring the idea of setting up an astron

#7 University of California High-Performance AstroComputing Center

The University of California High-Performance AstroComputing Center ( UC-HiPACC ), based at the University of California at Santa Cruz (UCSC), is a consortium of nine University of California campuses and three Department of Energy laboratories ( Lawrence Berkeley National Laboratory , Lawrence Live


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Meteorite / Meteorite


#1 Winchcombe meteorite

The Winchcombe meteorite is a meteorite that was observed entering the Earth's atmosphere as a fireball over Gloucestershire , England at 21:54 hours on 28 February 2021. Due to a public appeal, fragments were quickly recovered from the village of Winchcombe enabling it to be collected for analysis


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Researcher / Researcher


#1 Kin Endate

Kin Endate ( 円館 金 , Endate Kin , born December 15, 1960) is a Japanese amateur astronomer who has discovered hundreds of asteroids, most of them in collaboration with Kazuro Watanabe , placing him among the most prolific discoverers of minor planets . [1] Minor planets discovered: 624   [1] see §  

#2 Snježana Kordić

Snježana Kordić ( pronounced   [sɲěʒana kôːrditɕ] ( listen ) ; born 29 October 1964) [1] is a Croatian linguist . [3] In addition to her work in syntax , she has written on sociolinguistics . [2] Kordić is known among non-specialists for numerous articles against the puristic and prescriptive langua

#3 Geminiano Montanari

Geminiano Montanari (1 June 1633 – 13 October 1687) was an Italian astronomer , lens -maker, and proponent of the experimental approach to science. He was a member of various learned academies, notably the Accademia dei Gelati . Montanari's famous students were Domenico Guglielmini , Francesco Bianc

#4 Claes-Ingvar Lagerkvist

Claes-Ingvar Lagerkvist (born 1944) is a Swedish astronomer at the Uppsala Astronomical Observatory . He is known for his work on the shapes and spin properties of minor planets. [2] Swedish astronomer Minor planets discovered: 145   [1] see §   List of discovered minor planets He has discovered thr

#5 Max Wolf

Maximilian Franz Joseph Cornelius Wolf (21 June 1863 – 3 October 1932) was a German astronomer and a pioneer in the field of astrophotography . He was the chairman of astronomy at the University of Heidelberg and director of the Heidelberg-Königstuhl State Observatory from 1902 until his death in 19

#6 Kazuro Watanabe

Kazurō Watanabe ( 渡辺 和郎 , Watanabe Kazurō , born May 1, 1955) is a Japanese amateur astronomer and prolific discoverer of minor planets . [2] He was born in Hokkaidō , Japan and is a member of the Astronomical Society of Japan as well as of the Oriental Astronomical Association . Japanese astronomer

#7 Eugene Merle Shoemaker

Eugene Merle Shoemaker (April 28, 1928   – July 18, 1997) was an American geologist . He co-discovered Comet Shoemaker–Levy 9 with his wife Carolyn S. Shoemaker and David H. Levy . This comet hit Jupiter in July 1994: the impact was televised around the world. Shoemaker also studied terrestrial crat

#8 Paul G. Comba

Paul G. Comba (1926 – April 5, 2017) was an Italian-American computer scientist , an amateur astronomer and a prolific discoverer of minor planets . [2] Paul G. Comba Born 1926   ( 1926 ) Tunisia Died April 4, 2017 (2017-04-04) (aged   90–91) Education Ph.D. Alma   mater University of Turin , Blufft

#9 Martin Harwit

Martin Otto Harwit (born 9   March 1931) is a Czech-American astronomer and author known for his scientific work on infrared astronomy as a professor at Cornell University . He was later director of the National Air and Space Museum in Washington, D.C. from 1987 to 1995. [1] Czech-American astronome

#10 Tom Stafford (astronomer)

Tom Stafford is an American astronomer who has discovered a number of asteroids since 1997, [1] including 12061 Alena , [2] 12533 Edmond , [3] 13436 Enid , [4] 13688 Oklahoma [5] and 15904 Halstead [6] at Zeno Observatory (observatory code 727) in Edmond, Oklahoma . He is the son of Joseph W. Staffo

#11 Robert Linderholm

Robert Glen Linderholm (October 19, 1933 – July 6, 2013) was an American amateur astronomer who discovered several asteroids . [2] He lived in Cambridge , Nebraska where he had a private observatory, Lime Creek . [3] [4] American astronomer Minor planets discovered: 26   [1] see §   List of discover

#12 Michel Ory

Michel Ory (born 18 April 1966) is a Swiss amateur astronomer and a prolific discoverer of minor planets and comets , [1] who was one of five winners of the 2009 Edgar Wilson Award for his discovery of 304P/Ory (P/2008 Q2 Ory), a periodic comet of the Jupiter family on 27 August 2008, [2] using a 24

#13 Antonín Mrkos

Antonín Mrkos ( Czech pronunciation: [ˈantoɲiːn ˈmr̩kos] ) (27 January 1918, Střemchoví – 29 May 1996, Prague ) was a Czech astronomer . Czech astronomer Antonín Mrkos Minor planets discovered: 274   [1] see §   List of discovered minor planets

#14 Henry Englefield

Sir Henry Charles Englefield, 7th Baronet FRS FRSE FSA FLS (1752 – 21 March 1822) was an English antiquary and astronomer. For other people with the same name, see Englefield . Portrait of Henry Englefield by Thomas Phillips in 1815

#15 Peter Stoner

Peter Stoner (June 16, 1888 – March 21, 1980) [1] [2] was a Christian writer and Chairman of the departments of mathematics and astronomy at Pasadena City College until 1953; Chairman of the science division, Westmont College , 1953–57; Professor Emeritus of Science, Westmont College; and Professor

#16 Bonnie Buratti

Bonnie J. Buratti (born 1952) is an American planetary scientist in the Division of Earth and Space Sciences at the Jet Propulsion Laboratory in Pasadena , California , where she leads the Comets, Asteroids, and Satellites Group. [1] Her research involves the composition and physical properties of p

#17 Robert H. McNaught

Robert H. McNaught (born in Scotland in 1956) is a Scottish-Australian astronomer at the Research School of Astronomy and Astrophysics of the Australian National University (ANU). He has collaborated with David J. Asher of the Armagh Observatory . Scottish-Australian astronomer (born 1956) Minor pla

#18 Johann Palisa

Johann Palisa (6 December 1848 – 2 May 1925) was an Austrian astronomer , born in Troppau , Austrian Silesia , now Czech Republic . [1] He was a prolific discoverer of asteroids , discovering 122 in all, from 136 Austria in 1874 to 1073 Gellivara in 1923. [2] Some of his notable discoveries include

#19 Halton Arp

Halton Christian "Chip" Arp (March 21, 1927 – December 28, 2013) was an American astronomer . He was known for his 1966 Atlas of Peculiar Galaxies , which (it was later theorized) catalogues many examples of interacting and merging galaxies , though Arp disputed the idea, claiming apparent associati

#20 Nikolai Kardashev

Nikolai Semyonovich Kardashev [1] ( Russian : Никола́й Семёнович Кардашёв , IPA:   [nʲɪkɐˈlaj sʲɪˈmʲɵnəvʲɪtɕ kərdɐˈʂof] ; 25 April 1932 – 3 August 2019 [2] ) was a Soviet and Russian astrophysicist , Doctor of Physical and Mathematical Sciences, and the deputy director of the Astro Space Center of P


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Science / Science


#1 Hubble's law

Hubble's law , also known as the Hubble–Lemaître law , [1] is the observation in physical cosmology that galaxies are moving away from Earth at speeds proportional to their distance. In other words, the farther they are, the faster they are moving away from Earth. The velocity of the galaxies has be

#2 Cosmic microwave background

In Big Bang cosmology the cosmic microwave background ( CMB, CMBR ) is electromagnetic radiation that is a remnant from an early stage of the universe, also known as "relic radiation". [1] The CMB is faint cosmic background radiation filling all space. It is an important source of data on the early

#3 Steady-state model

In cosmology , the steady-state model is an alternative to the Big Bang theory of evolution of the universe. In the steady-state model, the density of matter in the expanding universe remains unchanged due to a continuous creation of matter, thus adhering to the perfect cosmological principle , a pr


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Star / Star


#1 V5668 Sagittarii

V5668 Sagittarii , also known as Nova Sagittarii 2015 Number 2 was the second and brighter of two novae in the southern constellation of Sagittarius in 2015 (the first was V5667 Sagittarii, reported on 12 February 2015 [6] ). It was discovered by John Seach of Chatsworth Island, New South Wales , Au

#2 V906 Carinae

V906 Carinae , also known as Nova Carinae 2018 , was a nova in the Milky Way galaxy which appeared in the constellation Carina , near the 5th magnitude star HD 92063 . It was discovered on images taken on 20.32 March 2018 by the All Sky Automated Survey for SuperNovae (ASAS-SN] telescope at the Cerr


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